Created
May 27, 2017 04:50
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#include "parser.h" | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include <string.h> | |
#include "dbg.h" | |
#include "queue.h" | |
#define CH_LEN 2 /* for storing char as str, for example: 'c' as {'c', '\0'} */ | |
extern queue_t* parser_create(char* buf) { | |
char* str1 = buf; /* main token */ | |
char* str2 = str1; /* sub token */ | |
char str3[CH_LEN] = ""; /* store characters as strings */ | |
char* ch_p1, *ch_p2, *ch_p3; | |
char* tok, *sub_tok; | |
int i; | |
queue_t* q = queue_create(); | |
element_t e; | |
d_printf("Splitting string \"%s\" into tokens:\n", str1); | |
/* Split the buffer into tokens. */ | |
for (i = 1; ; i++, str1 = NULL) { | |
tok = strtok_r(str1, " ", &ch_p1); | |
if (tok == NULL) | |
break; | |
d_printf("Token #%d: %s\n", i, tok); | |
/* Catch a command control character and turn it into a string. */ | |
ch_p3 = strpbrk(tok, ":,"); | |
if (ch_p3) | |
strncpy(str3, ch_p3, CH_LEN - 1); | |
/* Split tokens into subtokens. */ | |
for (str2 = tok; ; str2 = NULL) { | |
sub_tok = strtok_r(str2, ":,", &ch_p2); | |
if (sub_tok == NULL) | |
break; | |
d_printf(" ~ subtoken \"%s\"\n", sub_tok); | |
/* Allocate memory and push into the queue. */ | |
e = strdup(sub_tok); | |
if (e != NULL) | |
queue_push(q, e); | |
else | |
d_printf("String duplication \"strdup\" failed.\n"); | |
if (ch_p3) { | |
d_printf(" ~ cmd char \"%s\"\n", str3); | |
/* Allocate memory and push into the queue. */ | |
e = strdup(str3); | |
if (e != NULL) | |
queue_push(q, e); | |
else | |
d_printf("String duplication \"strdup\" failed.\n"); | |
} | |
} | |
} | |
return q; | |
} |
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